OFFSET
1,1
COMMENTS
Table starts
...2.....3......5......10.......20........40........79......158.....316
...3.....5......9......23.......63.......171.......449.....1251....3753
...5.....9.....17......61......245.......877......3025....11357...56785
..10....23.....61.....389.....2699.....16108.....93941...601676.4905724
..20....63....245....2699....33742....364259...3810228.45013100
..40...171....877...16108...364259...6945738.128397052
..79...449...3025...93941..3810228.128397052
.158..1251..11357..601676.45013100
.316..3753..56785.4905724
.631.10361.172369
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..82
FORMULA
Empirical for column k:
k=1: a(n) = 3*a(n-1) -2*a(n-2) -a(n-6) +3*a(n-7) -2*a(n-8)
k=2: [order 47]
EXAMPLE
Some solutions for n=4 k=4
..1..0..0..0..0..0..1....1..1..1..0..1..0..1....1..1..1..0..1..0..1
..0..0..1..1..0..1..0....1..0..0..0..0..0..1....1..0..0..0..0..0..1
..0..0..1..1..0..1..0....1..0..0..0..0..0..1....0..0..0..0..0..0..0
..1..0..0..0..0..0..1....0..1..1..0..1..0..0....1..0..0..0..0..0..1
..1..0..1..1..0..1..1....1..1..1..0..1..0..1....0..0..0..0..0..0..0
..1..0..0..0..0..0..1....0..1..1..0..1..0..0....0..0..0..0..0..0..0
..0..0..0..0..0..0..0....1..0..0..0..0..0..1....0..1..1..0..1..0..0
CROSSREFS
KEYWORD
nonn,tabl
AUTHOR
R. H. Hardin, Sep 24 2015
STATUS
approved